package cn.java86.dao;

import cn.java86.entity.Grade;
import java.util.List;

public interface GradeDao {
    public int add(Grade s); //增加
    public int update(Grade s); //修改
    public int del(long Grade); //删除
    public Grade get(long Grade); //根据id查询
    public List<Grade> getAll(); //查询所有
}
